NWDTW 2024

This talk will provide an overview of the newly augmented flag criteria used by the OQA’s Time-Series Check tool for groundwater levels. The tool compares site-visit-collected electronic readings and tape downs for publicly viewable groundwater levels, and flags discrepancies that likely indicate errors. The tool has always incorporated the uncertainty of the tape-down measurement, and now it also incorporates the uncertainty of the electronic reading. The discussion will address uncertainty of electronic readings and of tape downs, including uncertainty fields in SVMAQ and AQTS and uncertainty computations for electronic readings based on manufacturer technical specifications.